3 reviews
SKU: CT139
Out Of Stock
Compatible Models:

2013 - 2020 BMW F32/F33 4 Series - Twin Exhaust ONLY

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CT Carbon brings you this stunning BMW M Performance style full carbon fibre diffuser at just a fraction of the price. This will transform the rear end by giving the car a far more aggressive look. This one is made to fit the twin exit exhaust cars i.e. BMW 430i. 


Shipping & Warranty

All CT Carbon product's come with a 6 month warranty, View the full warranty information here


All orders placed before 3pm (GMT) are dispatched on the same day.

Delivery in the UK is completely free on all products

Worldwide delivery is offered on all products

If for any reason you're not happy with any products or just want to exchange something, simply visit our returns page and let us know within 30 days of your purchase


There are three ways to get your CT Carbon products fitted.

  1. Book in at our fitting facility in Hertfordshire, UK.
  2. Find a fitting partner near you and book in for fitting with them directly.
  3. Follow one of our fitting guide's to install the product's yourself.

Find out more here


Check out our projects and get inspiration for your build here

Product information

Customer Reviews

Based on 3 reviews

Perfect fit on my F36 gran coupe 2019 430i

Michael Ridley
rear diffuser

love it it makes the back end of my f32 look a little bit different from some other 430d’s i mapped the car first didn’t want to look fast and and not have the HP or TORQUE now it all blends in nicely 👍

Mark Lewis
Carbon Diffuser

After purchasing a diffuser from another company and not happy with how it fitted we got recommend to use CT Carbon. The fit was amazing and clipped right into place. No additional screws or fixings. Very pleased!

Order FAQs

Can I Finance My Order?

We do accept forms of finance here at CT which are available payment options at checkout including Klarna & if you are eligible, PayPal Credit.

We also offer Kandoo Finance allowing you to finance your purchase to more affordable monthly payments.
Click Here To Apply

Can I Have My Order Delivered To A Service Point?

Unfortunately NOT Service points will typically not accept parcels of a large size which means we do not recommend using them for delivery of your items. 

How Do I Get An Invoice?

When you place an order with us, you will receive an e-mail with your order confirmation. Within this e-mail is a link to download your invoice which will contain all the information needed.

 If you need anything further from us then do not hesitate to contact us here

Am I Charged VAT?

For our customers in the United Kingdom, yes. 20% VAT is included in our pricing. 

Regarding our International customers, no VAT is charged when you check out. The reason for this is when your order arrives within your own country, your local government will charge you import duties/taxes separately.

Do You Ship Worldwide?

Yes we do! We offer shipping worldwide & shipping costs are available at checkout.

Will These Products Void My Vehicle Warranty?

Some modifications can of course affect your manufacturer warranty.

Unfortunately, we cannot confirm if any of our products will affect your warranty as companies will have their own policies. We would advise speaking to your warranty/finance company or your dealership regarding these questions.